A song so catchy, that even the pokémon themselves can't help but to sing along! (Internet, what have you done.)

Disclaimer: I didn't create this; I found it on Nico Nico Douga while on a Shingeki no Kyojin OP kick, and decided to upload it to my channel in hopes that others would be able to enjoy it without a Nicovideo account. I also don't own the works parodied in the video, but I'm sure that you already guessed that by now.